<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <select>
        <option value="0">请选择</option>
        <option value="vue">vue</option>
        <option value="element">element</option>
        <option value="cooking">cooking</option>
        <option value="vuex">vuex</option>
        <option value="vue-router">vue-router</option>
    </select>
</body>
</html>